Its average egg weight was 55.9g, and mass egg weight 16.21kg at 72wk age, and feed conversion ratio was 2.06. The DWF had the best feed conversion efficiency in the five groups, about 14% to 18% higher than the normal.

• 矮小蛋鸡饲料转化率比较高，其中矮小粉的FCR达到2.；06，比普通高产蛋鸡饲料转化率提高14%25-18%25，对降低鸡蛋成本提高收入最有利。